package com.college.common.config;

import com.fasterxml.jackson.annotation.JsonAutoDetect;
import com.fasterxml.jackson.annotation.PropertyAccessor;
import com.fasterxml.jackson.databind.ObjectMapper;
import com.fasterxml.jackson.databind.jsontype.impl.LaissezFaireSubTypeValidator;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.cache.annotation.EnableCaching;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.data.redis.cache.RedisCacheConfiguration;
import org.springframework.data.redis.cache.RedisCacheManager;
import org.springframework.data.redis.cache.RedisCacheWriter;
import org.springframework.data.redis.connection.RedisConnectionFactory;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.data.redis.serializer.Jackson2JsonRedisSerializer;
import org.springframework.data.redis.serializer.RedisSerializationContext;
import org.springframework.data.redis.serializer.RedisSerializer;
import org.springframework.data.redis.serializer.StringRedisSerializer;

import java.time.Duration;

/**
 * Redis基础配置
 *
 * @author 小C工作室
 * @date 2020/6/19
 */
@EnableCaching
@Configuration
public class BaseRedisConfig {

	@Autowired
	RedisSerializer<Object> redisSerializer;

	@Bean
	public RedisTemplate<String, Object> redisTemplate(RedisConnectionFactory redisConnectionFactory) {
		RedisSerializer<Object> serializer = redisSerializer;
		RedisTemplate<String, Object> redisTemplate = new RedisTemplate<>();
		redisTemplate.setConnectionFactory(redisConnectionFactory);
		redisTemplate.setKeySerializer(new StringRedisSerializer());
		redisTemplate.setValueSerializer(serializer);
		redisTemplate.setHashKeySerializer(new StringRedisSerializer());
		redisTemplate.setHashValueSerializer(serializer);
		redisTemplate.afterPropertiesSet();
		return redisTemplate;
	}

	@Bean
	public RedisSerializer<Object> redisSerializer() {
		//创建JSON序列化器
		Jackson2JsonRedisSerializer<Object> serializer = new Jackson2JsonRedisSerializer<>(Object.class);
		ObjectMapper objectMapper = new ObjectMapper();
		objectMapper.setVisibility(PropertyAccessor.ALL, JsonAutoDetect.Visibility.ANY);
		//必须设置，否则无法将JSON转化为对象，会转化成Map类型
		objectMapper.activateDefaultTyping(LaissezFaireSubTypeValidator.instance, ObjectMapper.DefaultTyping.NON_FINAL);
		serializer.setObjectMapper(objectMapper);
		return serializer;
	}

	@Bean
	public RedisCacheManager redisCacheManager(RedisConnectionFactory redisConnectionFactory) {
		RedisCacheWriter redisCacheWriter = RedisCacheWriter.nonLockingRedisCacheWriter(redisConnectionFactory);
		//设置Redis缓存有效期为1天
		RedisCacheConfiguration redisCacheConfiguration = RedisCacheConfiguration.defaultCacheConfig()
				.serializeValuesWith(RedisSerializationContext.SerializationPair.fromSerializer(redisSerializer)).entryTtl(Duration.ofDays(1));
		return new RedisCacheManager(redisCacheWriter, redisCacheConfiguration);
	}


}
